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Finding the Fourth Proportional to 221,641.52, 332,462.30 and 55,429.52

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Solution

The fourth proportional to 221,641.52, 332,462.30 and 55,429.52 is: 83,144.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,641.52 : 332,462.30 = 55,429.52 : x
  2. Step 2: Convert to fraction form
    221,641.52/332,462.30 = 55,429.52/x
  3. Step 3: Cross multiply
    221,641.52x = 332,462.30 × 55,429.52
  4. Step 4: Simplify right side
    221,641.52x = 18,428,225,707.10
  5. Step 5: Solve for x
    x = 18,428,225,707.10/221,641.52
  6. Step 6: Final answer
    x = 83,144.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.